System for handling and processing steel



March 1942- DE wrr'r E. CARPENTER 2,277,205

SYSTEM FOR HANDLING AND PROCESSING STEEL Filed Oct. 25, 1939 2 Sheets-Sheet 1 March 24, 1942. D WITT E. CARPENTER I 2,277,205

SYSTEM FOR HANDLING AND PROCESSING STEEL Fi led Oct. 25, 1939 2 Sheets-Sheet 2 INVENTOR.

flaw MUM.

Patented Mar. 24, 1942 SYSTEM FOR HANDLING AND PROCESSING STEEL De Witt E. Carpenter, Detroit, Mich., assignor to E. V. Blum Application October 25, 1939, Serial No. 301,189

2 Claims. (Cl. 80--52) This application relates to machines useful in bar or rod mills for transferring bar stock from one set of shaping rolls to another set. A machine of this character may be considered as a repeater for the intermediate and finishing passes of such mills. One embodiment of my repeater machine is herein disclosed, and for an understanding thereof, reference should be had to the specification which follows and which relates to the appended drawings. In these drawings Figure 1 is a plane view of a machine of the invention;

Figure 2 is an elevation view;

Figures 3-7 are fragmentary detail views.

Referring now to the drawings wherein like reference numerals refer to like parts throughout the various views, reference numerals l and H designate successive sets of reducing rolls forming successive passes of a rolling mill for processing rod or bar stock. The invention provides a repeater for receiving rods from the shaping rolls l0 and directing them to the shaping rolls H. Both sets of rolls are substantially parallel and the finishing end of the set of rolls IEI is adjacent the starting end of the set of rolls II. The machine hereof grasps the leading end of bar stock as it comes out of the feeding rolls l0 and moves that leading end through an arc of about 180 and feeds it into the starting end of the receiving rolls ll, moving the leading end of the bar stock through an arc of approximately 180.

The machine comprises a frame providing a U-shaped horizontal track along which rides the outer part of a horizontally rotating arm 2| whose inner part is connected to a vertical shaft motor 22 which may be rotated to cause rotation of the arm 2| through an arc of 180. The inner and outer parts of the arm 2| are pivotally connected on a horizontal axis pivot 23 so that the outer end of the arm may rise and fall with respect to the motor 22.

The outer end of the arm 2| supports a traveler 24 in the form of a vertical rod which is journaled in the outer end of the rotating arm so that as it is carried by the rotating arm, it may move slightly around its vertical axis, thus shifting axially with respect to the outer end of the rotating arm. The lower end of the traveler rod is in the form of an enlarged plate 25 having downwardly flanged edges which carry a carriage plate 26 in such a manner that the caris relative lost motion between the carriage 21, depending from the carriage plate 26, and the traveler rod 24 and its plate 25. For locking the carriage 21 with respect to the traveler there is provided a carriage latch 30 journaled on the traveler at 3| and normally spring urged to lock the carriage with respect to the traveler in the most rearward position of the carriage. The carriage latch has thereon a pin 32 which may be moved downwardly to raise the carriage latch and thus permit the carriage to slide forwardly of the traveler to a limited extent. The carriage latch is so formed that when the carriage is in its rearward-most position with respect to the traveler the latch locks the carriage and traveler to each other; when it is raised, it frees the traveler and carriage.

Depending from and mounted on the carriage is a clamp 36 so constructed as to be closed normally by means of springs 31 forming part of the clamp. Sides 38 of the clamp, when moved towards each other, cause the clamp to open. Forming part of the clamp is a clamp open lock -40 which is normally in an idle position but which may be moved to a position where it will lock the clamp open.

For controlling the relative movement of the various parts as they move through the feeding and return strokes the following rails are provided:

Clamp opening-Extending from about 0 to 10 on the feeding stroke there are provided clamp opening rails 44 which engage the sides 38 of the clamp and insure the clamp remaining open during the first 10 of the feeding stroke and during the last 10 of the return stroke. There is also a rail 440, which engages the clamp open lock 40 to move it to an idle position during the return stroke from the 10 mark to the 0 mark, it being understood that the clamp open lock is in the position wherein it holds the clamp open as it reaches the 10 mark on the return stroke. The clamp opening rails 44 just mentioned also maintains the clamp open after the clamp is released from the influence of the clamp open lock. Thus, during the last 10 of the return stroke and the first 10 of the feeding stroke the clamp is open.

Clamp imminent-Extending from about 40 point to about the point on the feeding stroke, the track 20 is formed with a rise 46 which moves the outer part of the rotating arm 2| upwardly about its hinge connection 23 to the inner part of that arm and the rise is so formed that the movement is quick and sudden, thus throwing the entire assembly of traveler, carriage and clamp upwardly and outwardly to give a Whip to the leading end of the bar stock as it moves with the clamp during this part of the feeding stroke.

The whipping and throwing action provided by the inclined rise of the track 26 extending from about 40- through about 120 on the feeding stroke has been found to be of reat impor-- tance in the treatment and handling of certain types of steel. The whipping is here provided during the pass of the bar stock between the two sets of shaping rolls, by the track rise just mentioned.

Carriage latch reZealsa-Extending from the 170 mark to the 180 mark on the feeding stroke there is a carriage latch release rail 41 which engages the upper side of the carriage latch pin 32 to move the carriage latch 30 counter-clockwise on journal 3! to the position wherein it releases the carriage from the traveler. Thus in the event the clamp and carriage are required to move faster, at the end of the feeding stroke, than the traveler can move, as will normally be the case, the unlocking of the carriage and traveler will permit the carriage to move ahead of the traveler. The carriage speed is determined by the speed of the leading endof the bar stock which at that time is gripped by the receiving rolls II. The traveler moves at the speed of the feeding rolls In which are geared to move a little more slowly than the receiving rolls.

By the time the leading end of the bar stock and the carriage and clamp have reached the end of the feeding stroke, the bar stock has been seized or gripped by the rolls H and the clamp and carriage, which should have been moving forwardly faster than the traveler, has reached the end of the stroke ahead of the traveler. The traveler which had continued to move forwardly catches up to the carriage, whereupon the carriage latch 30 drops and once more locks the'carriage and traveler relatively. The carriage and which confines the bar stock within the outlet side of the repeater, once it has passed over the 90 mark. Once the bar stock has passed beyond the back lash tower it will be impossible for it or any part of it to whip back into the receiving side of the repeater or near it.

Now having described the machine herein disclosed and the invention hereof, reference should be had to the claims which follow for a determination of the invention.

I claim:

1. For use in the rolling and shaping of bar stock, wherein there are employed two substantially parallel sets of shaping rolls, with the finish end of the first set being adjacent the starting end of the second set, a machine for transferring bar stock from one set of shaping rolls to the other, and for causing the leading end of the bar stock to move through an arc of about 180, and for whipping the bar stock as its leading end so moves, comprising a traveler arranged to move in a feeding stroke from the 7 starting 'end of said are to the finishing end and latch release rail 41 is so formed that it will to return in a return stroke, means for so moving the traveler, a bar gripping clamp carried by said traveler, with the clamp being so arranged with respect to the traveler that the clamp can move relatively of the traveler, means for preventing relative movement between the clamp and traveler, means operable during the last part of the feeding stroke for inhibiting the action of the last mentioned means and thus permitting relative movement of the clamp and traveler at that time.

2. For use in the rolling and shaping of bar stock, wherein there are employed two substantially parallel sets of shaping rolls, with the finish end of the first set being adjacent the starting end of the second set, a machine for transferring bar stock from one set of shaping rolls to the other, and for causing the leading end of the bar stock to move through an arc of about and for whipping thebar stock as its leading end so moves, comprising a clamp for gripping the bar stock and arranged to move in a feeding stroke from the starting end of said are to the finishing end and to return in a return stroke, means for so moving the clamp, and means for rapidly moving the clamp upwardly and outwardly during an intermediate part of the feeding stroke to produce a whipping of the bar stock at that time.

DE WITT E, CARPENTER. 

